Azbil MCB10A, Руководство пользователя

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Azbil Corporation Configuration and structure of measuring system
Model MCB10A 1-5
1-1-4 : Loop configuration for contact output
An example of loop configuration is shown. If the instantaneous flow rate value
measured by this instrument satisfies the upper and lower limit settings or a critical
failure occurs in the instrument, that state is delivered as a contact output.
In addition to an analog signal, this loop configuration allows this instrument to
deliver the contact output to a sequencer or other host control system.
Contact input equipment
(Capable of receiving
open collector output signals)
Figure 1-4 Loop configuration for contact output
• Electromagnetic flowmeter (main unit): Measures flow rate and outputs an upper
or lower limit alarm or critical failure as a contact output.
• Contact input equipment: Receives the contact output and displays the alarm and
the like.
• Open collector: An output method using a transistor contact.